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**isExact**Answer whether the receiver performs exact arithmetic. Floats do not.

**isFinite**Answer whether the receiver does not represent infinity, nor a NaN

**isInfinite**Answer whether the receiver represents positive or negative infinity

**isNaN**Answer whether the receiver represents a NaN

**negative**Answer whether the receiver is negative

**positive**Answer whether the receiver is positive. Negative zero is not positive, so the definition is not simply >= 0.

**sign**Answer 1 if the receiver is greater than 0, -1 if less than 0, else 0. Negative zero is the same as positive zero.

**strictlyPositive**Answer whether the receiver is > 0